Gearboxes and gearheads are speed reducers that consist of a set of gears, shafts, and bearings in an enclosed housing. In converting inputs to outputs, they reduce RPM and increase torque

Selective catalytic reduction (SCR) systems inject ammonia into boiler flue gas and pass it through a catalyst bed where the nitrogen oxide gas (NOx) and ammonia react to form nitrogen and water vapor.

Variable transmissions are used in industrial applications to alter the speed of an output shaft.

Adjustable speed drives alter the speed of a driven shaft to a speed selected by an operator.

Worm gears are cylindrical gears with a spiral thread that drive mating worm wheels in high-reduction gearset applications. They operate on non-intersecting perpendicular axes.

Herringbone gears use teeth with two opposing helices and transmit power and motion between parallel axes. They sometimes have a center groove.

Helical gears transmit power and motion between parallel axes (opposite hand) or right-angle axes (same-hand).

Tube fittings connect runs of tubing for in-line, offset, multi-port, and mounting configurations to other tubing sections, pipe, hose, and other fluid transfer components.

Hose fittings are a category of components used to connect hoses and tubes for in-line, offset, multi-port, and mounting configurations.

Pipe fittings include many components that connect pipe ends for in-line, offset, multi-port, and mounting configurations.

Gearmotors consist of an AC or DC motor with an integral gearbox or gear head that steps delivered speed up or down.

Industrial pipe is a broad category of fluid and solid transport hardware used in many applications and industries. Cylindrical pipe and rigid tube is used in process, energy, construction, and civil infrastructure applications.

Manholes allow access to underground pipes, cables, meters and facilities. Manhole covers are used cover manholes.

Thread gages are dimensional instruments for measuring and/or verifying thread size, pitch or other parameters.

Pipe hangers and pipe supports include clevis hangers, beam clamps, pipe clamps, brackets, pipe straps and other accessories that hold pipes in place.